Description
resource 
ldap_read ( resource link_identifier, string base_dn, string filter [, array attributes [, int attrsonly [, int sizelimit [, int timelimit [, int deref]]]]] )
     Returns a search result identifier or FALSE on error.
  
     ldap_read() performs the search for a
     specified filter on the directory with the scope
     LDAP_SCOPE_BASE. So it is equivalent to reading an entry from the
     directory.
     An empty filter is not allowed. If you want to retrieve
     absolutely all information for this entry, use a filter of
     "objectClass=*". If you know which entry types are used on the
     directory server, you might use an appropriate filter such as
     "objectClass=inetOrgPerson".
     This call takes 5 optional parameters. See ldap_search()
     notes.
    
Note: 
      These optional parameters were added in 4.0.2:
      attrsonly,
      sizelimit,
      timelimit,
      deref.
     
      From 4.0.5 on it's also possible to do parallel searches. See
      ldap_search() for details.